Please read: updated information for summer holiday zone 2018: Advanced booking and payment for Holiday Zone is essential and we are unable to accommodate 'walk ins' on the day. Online booking will be available up to noon on the Friday before the week of which you would like to book. Only fully paid Mahdlo members can book on to Holiday Zone. If your child’s membership has expired, you can renew your membership online at: http://mahdloyz.org/renew-membership/